Common troubleshooting methods for walkie-talkies
Common troubleshooting methods for walkie-talkies shared by the Marine handheld radio Manufacturer.
Three. PTT(launching key) : the launching key is the most frequently used part in daily use. In some machines sent for repair, it is found that some of the machines are aging or damaged, affecting the normal use. Some affect the circuit board of the key, the button contact is bad, the key failure and other faults, the best maintenance with the same model of the original device.
Four. Power switch, static manic potentiometer, stepping potentiometer: the power switch in the walkie-talkie is generally integrated with the volume potentiometer. Some low-end machines have problems with the quality of components, which can switch the power supply, but have problems with the volume adjustment. It is recommended to replace the same type of good devices. Static manic potentiometer repeatedly adjust the opportunity is less, but need to work in a particular location, some users are afraid of adjustment trouble, simply use glue to stick to death, so in the future maintenance buried hidden trouble. Stepper potentiometer is used to convert channels and manual programming, good potentiometer feel very good, rotation step between clear, do not have a smooth feeling. Some machines will damage the potentiometer shaft, so that it can not change the channel and programming, repair can only be replaced with new parts. At present, some machines use the button switch, this type of machine should pay attention to the use of a long time, the conductivity change. Sometimes do not cause the boot, or repeatedly press several times to boot, maintenance should be considered to clean the keyboard and circuit board.
Five. Conductive keyboard: most walkie-talkies are equipped with DTMF keyboard and programming keys. If the keyboard is damaged, greasy, some keys fall off, and mice and cockroaches are bitten in the machine sent for repair. Such faults only need to be cleaned or renewed.
Six. Loudspeaker (horn) : loudspeaker is a key part of walkie-talkie, some users like to turn up the volume to the maximum, some machine audio amplifier and bar match is not designed very well will burn it. There are some special environment users, with a period of time, the sound is getting smaller and smaller, maintenance found in the sound film on the absorption of a lot of iron powder, iron powder thoroughly clean generally can restore the original.
Seven. Audio components (headset) : some users will use earphones and other external accessories due to the working relationship, audio plug generally rely on special plug and socket connection, over time will produce bad contact with the socket or take off welding, because the socket is generally with a dynamic break point, at this time will produce bad fault. It is recommended to replace good socket during maintenance.
Eight. Machine clamp (back clamp) : machine clamp is the necessary accessory of walkie-talkie. When users use there will be screw off phenomenon, some users will find a screw to screw on regardless of length, there are self-tapping screws. Some machine back clamp screw hole is through hole type, screw too long will damage the circuit board, serious machine will be scrapped. Walkie-talkie back clamps are generally marked with screw size, such as: M3X5mm means screw diameter of 3 mm, length of 5mm, must be required to use back clamps screw.
That's all for the sharing, thanks for your reading, and we also supply Marine Walkie Talkie for sale, if you have any demand for our products, just feel free to contact us.